Driving controlling apparatus for linear compressor and...

Details Driving controlling apparatus for linear compressor and... Driving controlling apparatus for linear compressor and...

2006-10-31

2010-12-07

Freay, Charles G (Department: 3746)

Pumps

Condition responsive control of pump drive motor

By control of electric or magnetic drive motor

C417S417000, C417S053000, C318S119000

Reexamination Certificate

active

07845912

ABSTRACT:
A driving controlling apparatus for a linear compressor, comprises: a storing unit for storing a reference phase difference to judge an overload state; and a controlling unit for judging an overload state based on a comparison result between the reference phase difference and a phase difference between a current and a stroke, and controlling a voltage or a current applied to a linear motor based on the judgement result.

REFERENCES:
patent: 6930462 (2005-08-01), Yoo et al.
patent: 7408310 (2008-08-01), Hong et al.
patent: 7459868 (2008-12-01), Yoo et al.
patent: 2004/0071556 (2004-04-01), Sung et al.
patent: 2006/0153688 (2006-07-01), Lee et al.
patent: 2006/0228224 (2006-10-01), Hong et al.
U.S. Appl. No. 11/554,700 to Sung et al., which was filed on Oct. 31, 2006.

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